I'll have to look again, but I don't think there is anything in the cab to indicate there is AC.
In the box there is a toggle switch where when flipped up is heat and down is AC. So far the blower fan for the unit only functions for the heat setting. The other thing I have noticed is that the indicator light is much brighter when I put it to Heat than AC.
While we are on it, how long does it take for one of these units to warm up? I ran the engine until the temp needle was in the normal position, but I wasn't getting heat in the back. Do I need to really be driving to get the box heater to function? Sounds like a stupid question, but I am still buried in 5 feet of snow on one side.
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